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A retinal implant is a visual prosthesis for restoration of sight to patients blinded by retinal degeneration. The system is meant to partially restore useful vision to those who have lost their photoreceptors due to retinal diseases such as retinitis pigmentosa (RP) or age-related macular degeneration (AMD).
System: Eye and visual system: Significant diseases: Cataract, retinal disease (including diabetic retinopathy and other types of retinopathy), glaucoma, corneal disease, eyelid and orbital disorders, uveitis, strabismus and disorders of the ocular muscles, ocular neoplasms (malignancies, or cancers, and benign eye tumors), neuro-ophthalmologic disorders (including disorders of the optic nerve)
Humayun co-invented the Argus II retinal prosthesis, [23] a retinal implant designed to help patients with genetic retinitis pigmentosa. [24] [25] More than 30 clinical trial participants in Argus II trial launched in 2007 at sites in the U.S. and Europe. It was approved by the FDA in February 2013. [26]
Diabetic retinopathy (also known as diabetic eye disease) is a medical condition in which damage occurs to the retina due to diabetes.It is a leading cause of blindness in developed countries and one of the lead causes of sight loss in the world, even though there are many new therapies and improved treatments for helping people live with diabetes.
Rhegmatogenous retinal detachment typically requires prompt surgical intervention to preserve vision. [3] [8] [9] [10] The 3 main options include pneumatic retinopexy, vitrectomy, and scleral buckle. [2] These are selected based on how the patient presents, including the number, location and size of retinal tears, surgeon preference, and cost ...
Retinal hemorrhage (UK English: retinal haemorrhage) is a disorder of the eye in which bleeding occurs in the retina, the light sensitive tissue, located on the back wall of the eye. [1] There are photoreceptor cells in the retina called rods and cones , which transduce light energy into nerve signals that can be processed by the brain to form ...